No such thing as a 3months tourist visa, as stated earlier, from the day it was issued, you get 3 months to enter the country, but once it is used, you only have 2 months in-country, which can be extended for another 30 days
If you are on the first 3months of the Non-B, it can be transferred, if on extension, no, the day it gets canceled, that day you need to leave the country.